/Engine/Source/Runtime/Engine/Classes/MeshVertexPainter/MeshVertexPainterKismetLibrary.h
Paints vertex colors on a mesh component lerping from the start to the end color along the specified axis.
static void PaintVerticesLerpAlongAxis ( [UStaticMeshComponent](API\Runtime\Engine\Components\UStaticMeshComponent) * StaticMeshComponent, const [FLinearColor](API\Runtime\Core\Math\FLinearColor) & StartColor, const [FLinearColor](API\Runtime\Core\Math\FLinearColor) & EndColor, EVertexPaintAxis Axis, bool bConvertToSRGB )